Performance and microbial diversity of palm oil mill effluent microbial fuel cell

B. C. Jong, P. W Y Liew, M. Lebai Juri, B. H. Kim, A. Z. Mohd. Dzomir, K. W. Leo, M. R. Awang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Aim: To evaluate the bioenergy generation and the microbial community structure from palm oil mill effluent using microbial fuel cell. Methods and Results: Microbial fuel cells enriched with palm oil mill effluent (POME) were employed to harvest bioenergy from both artificial wastewater containing acetate and complex POME. The microbial fuel cell (MFC) showed maximum power density of 3004mWm -2 after continuous feeding with artificial wastewater containing acetate substrate. Subsequent replacement of the acetate substrate with complex substrate of POME recorded maximum power density of 622mWm -2. Based on 16S rDNA analyses, relatively higher abundance of Deltaproteobacteria (88·5%) was detected in the MFCs fed with acetate artificial wastewater as compared to POME. Meanwhile, members of Gammaproteobacteria, Epsilonproteobacteria and Betaproteobacteria codominated the microbial consortium of the MFC fed with POME with 21, 20 and 18·5% abundances, respectively. Conclusions: Enriched electrochemically active bacteria originated from POME demonstrated potential to generate bioenergy from both acetate and complex POME substrates. Further improvements including the development of MFC systems that are able to utilize both fermentative and nonfermentative substrates in POME are needed to maximize the bioenergy generation. Significance and Impact of the Study: A better understanding of microbial structure is critical for bioenergy generation from POME using MFC. Data obtained in this study improve our understanding of microbial community structure in conversion of POME to electricity.

Original languageEnglish
Pages (from-to)660-667
Number of pages8
JournalLetters in Applied Microbiology
Volume53
Issue number6
DOIs
Publication statusPublished - Dec 2011
Externally publishedYes

Fingerprint

Bioelectric Energy Sources
Acetates
Waste Water
Epsilonproteobacteria
palm oil
Deltaproteobacteria
Microbial Consortia
Betaproteobacteria
Gammaproteobacteria
Electricity
Nutritional Support
Ribosomal DNA

Keywords

  • Bioenergy
  • Electrochemically active bacteria
  • Microbial fuel cell
  • Palm oil mill effluent
  • Wastewater treatment

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology

Cite this

Jong, B. C., Liew, P. W. Y., Juri, M. L., Kim, B. H., Mohd. Dzomir, A. Z., Leo, K. W., & Awang, M. R. (2011). Performance and microbial diversity of palm oil mill effluent microbial fuel cell. Letters in Applied Microbiology, 53(6), 660-667. https://doi.org/10.1111/j.1472-765X.2011.03159.x

Performance and microbial diversity of palm oil mill effluent microbial fuel cell. / Jong, B. C.; Liew, P. W Y; Juri, M. Lebai; Kim, B. H.; Mohd. Dzomir, A. Z.; Leo, K. W.; Awang, M. R.

In: Letters in Applied Microbiology, Vol. 53, No. 6, 12.2011, p. 660-667.

Research output: Contribution to journalArticle

Jong, BC, Liew, PWY, Juri, ML, Kim, BH, Mohd. Dzomir, AZ, Leo, KW & Awang, MR 2011, 'Performance and microbial diversity of palm oil mill effluent microbial fuel cell', Letters in Applied Microbiology, vol. 53, no. 6, pp. 660-667. https://doi.org/10.1111/j.1472-765X.2011.03159.x
Jong, B. C. ; Liew, P. W Y ; Juri, M. Lebai ; Kim, B. H. ; Mohd. Dzomir, A. Z. ; Leo, K. W. ; Awang, M. R. / Performance and microbial diversity of palm oil mill effluent microbial fuel cell. In: Letters in Applied Microbiology. 2011 ; Vol. 53, No. 6. pp. 660-667.
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AB - Aim: To evaluate the bioenergy generation and the microbial community structure from palm oil mill effluent using microbial fuel cell. Methods and Results: Microbial fuel cells enriched with palm oil mill effluent (POME) were employed to harvest bioenergy from both artificial wastewater containing acetate and complex POME. The microbial fuel cell (MFC) showed maximum power density of 3004mWm -2 after continuous feeding with artificial wastewater containing acetate substrate. Subsequent replacement of the acetate substrate with complex substrate of POME recorded maximum power density of 622mWm -2. Based on 16S rDNA analyses, relatively higher abundance of Deltaproteobacteria (88·5%) was detected in the MFCs fed with acetate artificial wastewater as compared to POME. Meanwhile, members of Gammaproteobacteria, Epsilonproteobacteria and Betaproteobacteria codominated the microbial consortium of the MFC fed with POME with 21, 20 and 18·5% abundances, respectively. Conclusions: Enriched electrochemically active bacteria originated from POME demonstrated potential to generate bioenergy from both acetate and complex POME substrates. Further improvements including the development of MFC systems that are able to utilize both fermentative and nonfermentative substrates in POME are needed to maximize the bioenergy generation. Significance and Impact of the Study: A better understanding of microbial structure is critical for bioenergy generation from POME using MFC. Data obtained in this study improve our understanding of microbial community structure in conversion of POME to electricity.

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